Safety-razor-blade-honing device



J. WAKEFIELD AND A. LAMB.

SAFETY RAZOR BLADE HONING DEVICE.

APPLICATION FILED FEB. 17, 1920.

1,367,108, Patented Feb. 1, 1921.

UNITED STATES PATENT OFFICE.

JOSEPH WAKEFIELD AND ARTHUR LAMB, or LONDON, ENGLANDSAFETYR.AZOR-BLAIDIEHO1\TING DEVICE.

Specification of Letters Patent. Pate t d F b 1 1921' Application filedFebruary 17, 1920. Serial No. 359,359.

refers more particularly to that type in which the blade is secured to aholder re- :movably attachable to a rotatable pivot so as to enable theblade holder to be reciprocat-ed through a curved path above the honingsurface, the holder being somounted as to permit of its rotation whenthe direction of movement is reversed.

The object of the present invention is an improved and simplifiedconstruction of honing devices of the type described which is adaptedfor use with any type ofblade (single or double edge) inwhich the bladeholder may be easily and quickly adjusted with respect to the operatingsurface ofthe honing stone to obtain the best results, While the methodof mounting the blade holder permits of its use by the mostinexperienced persons without risk of injuring or damaging the blades.

And in order that our said invention may be more clearly understood, wewill now proceed to describe the same with reference to the accompanyingdrawing, which shows by way of example an apparatus constructedaccording to one embodiment of our invention.

Figure l is a side elevation of the apparatus or device with the holderin position.

Fig. 2 is a plan showing the holder in one extreme position in fulllines and dotted in the other extreme position.

Fig. 3 is a front elevation with the blade holder removed.

Figs. 4 and 5 are elevations of two forms of blade holders.

Fig. 6 is an enlarged detail partly in section.

The same letters of reference are employed to denote the same parts inall the vlews.

by a suitable ball joint 04 is a plate of metal or othersuitablematerial to which is attached another plate I) provided with downwardlyturned ends 6 which ena-blethe device to be easily held in a positionwith one hand. Mounted upon the platform a is the honing stone 0, whichin the present instance is provided with diagonally extending groves 0The plate a is extended at a and through a perforation in this extendedportion a passes the supporting column for the holder. This isillustrated in detail at Fig. 6. cl is an externally screw threadedtube, which is adapted to be adjusted in position vertij cally withrespect to theplate a by means of nuts 6 coming above andbelowthe-plate,

any appropriate washers being added for facilitating adjustment. 7 is arod or pillar,

the reduced portion 7 of which passes down the tube cl, and is held inposition therein but so as to be rotatable by meansof the washer qandscrew 9 h is a rodconnected m to the top of the column f, in such away that the rod can he swung vertically upward or rotated about itsaxis. The holder for the blade two forms of which are shown at Figs. 4:and 5 is provided with a tubular portion 72 adapted to telescope orslide over the rod h. It is also provided witha grooved collar (1 and ahandle 1". Attached to the outer edge of the plate a is aguide .9provided with two uprights c c and a hinged top bar .9 the end of whichwhen the device is closed is adapted to be engaged bya suitablehingedloop or clip 8. j pp The holder shown at Fig. 4 is provided with plates79 between which the blade, for instance a. single edged blade isinserted.

The holder as shown at Fig. 5 is furnished with a lower fixed plate 32and a hinged plate 19 which latter is so mounted that it can belongitudinally slid for a short distance aswell as turned upon itspivot, and the lower plate 37 is provided with a study) which is adaptedto pass into a key hole slot 79 so-that when the blade is placed inposition and the plate 19 is turned down and. slid longitudina1ly, theblade can be locked in position. The plate 29 is turned up at each endat 79 to facilitate its manipulation.

The general operation of the device will be readily understood. Theblade is placed in position in the required holder, for indevice is nowheld in one hand by means of the downwardly turned portion 12 of theplate I) and the holder is drawn backward and forward by means of thehandle a, the *edgebf the blade being turned in the forward direction.It is found in practice that after the blade 15, honing stone, the bladeis very efficiently honed or set and it can be removed and a has beendrawn a very few times across the fresh. blade placed in position. Theadjustment for the pillar f explained with reference to 'Fig. 6 enablesthe height to be very accurately regulated so that the edge of the bladeis preferably flat and true with .regarjdto the surface of the stone.

An important additional advantage is secured by providing the diagonalgrooves c on the surface of the stone 0 a more eiiicient .vresultbeingsecured than when the surface of the stone presents a dead level.

The holder for the reception of the blade may be provided with one fixedplate and one hinged plate between which the blade is clamped in anysuitable way. In some cases one of the clamping plates may be v maderemovable so that it can be exchanged for anotherplate according to thenature of the blade which is to be sharpened. What we claimas ourinvention and desire to secure by Letters Patent of the f United Statesof America is 1. A device for honing the blades of I razors comprising aframework carrying a honing stone, a vertically adjustable pillarmounted rotatablyon said framework, a

' rod connected to the top of said pillar by means of a universal joint,a blade holder removably connected to said-rodand guiding meanstowardthe free end of said blade v holder for guiding the same during itsmovement through anarc, for the purposes described. r 2. A' device forhoning the blades of irazors comprising a framework carrying a honlngstone, a vertically ad ustable externally screwed tube mounted on saidframe, .a pillar rotatable in said tube a rod connected to the top ofsaid pillar by means of a universal joint, a blade holder removablyconnected to said rod and guiding means toward the free end of saidblade holder for guiding the same during its movement through an arc,for the purposes set forth.

3. A device for honing the blades of razors comprising a frameworkcarrying a segment-shaped honing stone and having a screwed hole at oneend of said framework, an externally threaded tube in said hole,provided with lock nuts on opposite sides adapted to lock said tube inany vertically adjusted position in said hole, a pillar rotatable insaid tube and formed with a shoulder adapted to engage the upper end ofsaidtube, a rod connected to the top of said pillar by means of auniversal joint, a blade holder removably connected to said tube and aguide engaging said blade holder intermediate its ends and adapted tomaintain the same in a plane parallel with the surface of the honingstone and to limit its movement through an arc in opposite direc tions,for the purposes set forth.

4. A device for honing the blades of razors comprising a frameworkcarrying a honing stone, a vertically adjustable pillar mountedrotatably on said framework, :1 rod connected to the top of said pillarby means of a universal joint, a blade holder removably connected at oneend to said rod and provided at the other end with a handle, a groovedcollar 011 said holder intermediate its ends and an are shaped guide onsaid frame with which said collar engages during its movement throughthe arc of a circle for the purposes set forth.

5. A device for honing the blades of razors comprising a. frameworkcarrying a honing stone, a vertically adjustable pillar mountedrotatably in said frame, a rod connected to the top of said pillar bymeans of,

a universal joint, a blade holder removably connected to said rod, anare shaped guide on said frame engaging the blade holder during itsmovement through the arc of a circle, said guide having a hinged top barto enable said blade holder to be disengaged 7 from said guide, andmeans for holding the frame during honing operations, for the V purposesset forth.

In witness whereof we afiix our signatures.

JOSEPH WAKEFIELD. ARTHUR LAMB.

